@charset "utf-8";
@function n($px) {
    @return $px/2;
}
$border-color: #ff9344; //边框颜色

#active a {
    color: skyblue;
}
#active i {
    color: skyblue;
}
.web{
    

    footer {
        background: white;
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        ul {
            margin-top: n(20px);
            li {
                float: left;
                width: 25%;
                a {
                    color: #000000;
                    display: block;
                    text-align: center;
                    i {
                        font-size: n(68px);
                        color: $border-color;
                    }
                    h2 {
                        margin-top: n(9px);
                        font-size: n(26px);
                        margin-bottom: n(14px);
                    }
                }
            }
        }
    }
}